grep "$(printf "\\033")" output
'
+test_expect_success 'patch-mode via -i prompts for files' '
+ git reset --hard &&
+
+ echo one >file &&
+ echo two >test &&
+ git add -i <<-\EOF &&
+ patch
+ test
+
+ y
+ quit
+ EOF
+
+ echo test >expect &&
+ git diff --cached --name-only >actual &&
+ test_cmp expect actual
+'
+
test_done